If you get your prescriptions filled electronically, always double-check the dosage. Kimberly’s prescription was recently screwed up somewhere between the physician filling out the order online and Costco’s pharmacist receiving it. Luckily for her, the Costco pharmacist was incredibly helpful and fixed the problem for her, so Kimberly didn’t have to waste her copay or deal with the issue on her own. He also explained, however, that the current state of electronic prescriptions is a big mess.